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Posted to issues@ratis.apache.org by "Tsz-wo Sze (Jira)" <ji...@apache.org> on 2021/01/06 14:37:00 UTC
[jira] [Commented] (RATIS-993) Support pre vote
[ https://issues.apache.org/jira/browse/RATIS-993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259755#comment-17259755 ]
Tsz-wo Sze commented on RATIS-993:
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Filed RATIS-1282 as a followup work.
> Support pre vote
> ----------------
>
> Key: RATIS-993
> URL: https://issues.apache.org/jira/browse/RATIS-993
> Project: Ratis
> Issue Type: New Feature
> Components: server
> Reporter: runzhiwang
> Assignee: runzhiwang
> Priority: Major
> Fix For: 1.1.0
>
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> For example, leader is s1, and s2, s3 are the followers. If there is something wrong with s3's network, and s3 lose connection with leader in a short time interval, s3 will trigger election. when s3's network recovery, leader will step down which is unnecessary. So I want to add pre vote before real vote.
> 1. if s3 want to request vote, it first send a pre vote request.
> 2. when s1 and s2 receive pre vote request of s3, they check their electionTimeout to decide whether should trigger leader election.
> 3. If s1 and s2 refuse to trigger a new leader election, s3 still keep as follower.
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